Oiling device for combustion engines



Dec. 9, 1941.

A. EVANS 2,265,805

OILING DEVICE FOR COMBUSTION ENGINES Filed Nov. 14, 1940 '4 Sheets-Sheet 1 INVFNTOR A] 58/1 Zuzana- 8 ATTORNEY Dec. 9, 1941- v s 2,265,805

. OILING DEVICE FOR COMBUSTION ENGINES Z5 Fig.5.

1 L I a, ,i 1 b) a 2ga J i 4 35 g i 29 392 36 2 a 1 i a) (D 34 3303 3 r l 28 Q 7 o a is): 2 49 (i) i 4 50 j I 1 l INVENTOR 1 5 4/522? Evans ATTORNEY Dec. 9, 1941. A. EVAN 0 OILING DEVICE FOR COMBUSTION ENGINES Filed Nov. 14, 1940 4 Sheets-Sheet 4 INVENTOR 245 era Erma I BY ATTORNEY Patented Dec. 9, 1941 Albert Evans, Fairview, N. J.

Application November 14, 1940, Serial No. 365,668

3 Claims.

This invention relates to new and useful improvements in an oiling device for internal combustion engines and the like,

It is a known fact that the fuels of internal combustion engines get past the pistons and enter the crankcase and .oil pan of the engine. This invention contemplates the construction of a ,device for effectively recovering a large portion of the fuelso dissipated. The device not only will be an economy in so far as fuel is concerned, but it will increase the life .of the engine by preventing the formation of sulphuric acid and other destructive acids and compounds produced when fuel oil enters the crankcase and oil pan.

More specifically, the invention proposes the construction of a device which is characterized by a body for holding .a quantity ,of oil from the crankcase of the engine, and having a pair of spaced walls mounted on the end of ,a tubular member, and an arrangement for supplying oil from the crankcase to said body, straining the oil, supplying it to an auxiliary body, allowing the oil to overflow into an oil return pipe which is-connected to the crankcase, and in theauxiliary body providing a pipe to be connected with the intake manifold of the engine for drawing out the gasoline fumes.

Still further the invention proposes a novel construction of the straining mechanism within said body.

Another object of the invention resides in the novel constructionof the body and the auxiliary body.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the variousnovel features of the invention are more particularly set forth.

In the accampanying drawings forming a material part of this disclosure:

Fig. 1 isa sideelevational view of adevice constructed in accordance withthis invention.

Fig, 2 is a plan View of Fig. 1.

Fig. 3 is a bottom view of Fig. 1.

Fig. 4 is a horizontal sectional view taken on the line 44 of Fig. 1.

Fig. .5 is a fragmentary enlarged vertical sectional view taken on the line 5- 5 of Fig. 4.

Fig. 6 isa horizontal sectional view on the line line 6--6.of Fig. 1.

Fig. .7 is a horizontal sectional view on the line- .on .the line i8es8 .of Fig. .I.

Fig. 9 is a vertical sectional view of the device taken on the line 9.9 of Fig. 1.

Fig. 10 is a fragmentary enlarged vertical sectional view of the central portion of the device showing particularly the oil strainer.

Fig. 11 is a perspective view of the perforated shell of the oil strainer.

Fig. 12 is a horizontal sectional view of the oil strainer taken on the line |2-l2 of Fig. 10.

Fig. 13 is a fragmentary enlarged verticalsectional view taken on the line l3l3 of Fig. 1.

Fig. 14 is a fragmentary horizontal sectional view taken on the line l4l4 of Fig. 13.

Fig. 15 is a horizontal sectional view on the line 15-15 of Fig. 13.

ends of the top and bottom ends of a tubular member 28 2| and 22 are formed with annular grooves 23. into which the edges of the tubular member 26* The adjacent faces of the walls engage. Packing gaskets Mare disposed within these grooves to form an oil tight joint between the parts when the walls 2! and 22 are tightly pressed upon the ends of the tubular member Preferably, the tubular member 2% comprises a metallic tube. Anoil return pipe for connecting with the top portion of the oil crankcase of the said engine, extends through and is connected with the walls 2| and 22 for holding the parts of the body 2% together. The bottom portion of the pipe 25 is formed with threads =25 which are threa dedly connected-with the bottom wall 22. A nut 26 is threadedlyengaged upon the top end of-the pipe 25. A gasket Z'lis engaged beneath the nut andagainst the top face of the wall 2|. The nut 26 is turned tight for forcing the walls 2| and 22 together.

- Anoil strainer 28 is disposed within the body 20 and is mounted on the top wall 2| and is disposed about the pipe 25. This oil strainer 2,8 includes acylindrical perforated shell 29 having brackets 30 mounted upon its top end. Fastening elements .31 secure the brackets .36 to the .tOp

A gasket 33 -is interposed between the top :edge

of the cylindrical shell 29 and the bottom face of the top wall 2| to form an oil tight joint at this point. Several layers of wire mesh filter material 34 are engaged about the perforated shell 29. Filter cloth 23 is attached about the wire mesh material 34. Wire binder elements 35 engage about the filter cloth material 28 to secure the same in position on the mesh material 34.

An oil inlet pipe 36 is connected with the body 20 and is adapted to be connected with the oil pump of the engine. The pipe 36 extends through the bottom wall 22. The inner end of the pipe is provided with a vertical tube 36 which extends up to the top portion of the body 20 and vbvhich is capable of discharging the oil into the ody.

An auxiliary body 31 is mounted upon the top of the body 23. This auxiliary body comprises a tubular member 31 mounted on the top wall 2|, and a top end wall 38 mounted across the top of the tubular member 31. The adjacent faces of the walls 2| and 38 are formed with annular grooves 23 in which there are gaskets 24. The arrangement is such that when the walls 38 and 2| are forced together the auxiliary body 31 will b oil tight.

Means is provided for urging together the walls 2| and 38. This means comprises a tubular flared member 4 threadedly engaged on the top of the pipe 25. A Vertical stem 4| extends through the wall 38 and into the top of the tubular flared member 43. A bolt 42 is mounted across the side walls of the tubular flared member and through the bottom end of the stem 4| for joining these parts together. A nut 43 is threadedly engaged on the top end of the stem 4| and acts against the top face of the wall 38 for forcing the same downwards.

A pipe 44 (see Fig. 13) extends from the oil strainer 28 to the auxiliary body 31. from the body 20 may flow up through the pipe 44 into the auxiliary body 31 and then overflow over the top edge of the tubular flanged member 40 and down through the pipe 25. A pipe 45,

which is provided with a one way valve 46, con- 1} nects with the top of the auxiliary body 31. This pipe 45 is intended to be connected with the intake manifold of the engine right before the carburetor.

The cylindrical shell 29 has an inturned bota tom flange 29 which engages against the side of the pipe 25. A washer 48 is slidably mounted on the pipe 25 and engages against a gasket 43 which in turn engages against the flange 2%.

An expansion spring 56 is coaxially mounted on the pipe 25 and acts between the wall 22 and the washer 48 for compressing the gasket 49 to pro duce an oil tight joint at the bottom of the oil strainer.

In Figs. 16 and 17 a modified form of the invention has been disclosed which distinguishes from the prior form in the fact that the cylindrical perforated shell 29 of the oil strainer is provided with an internal tube 53' which is slidably mounted to close off some of the perforations of the shell 29. This tube 55' has a projecting pin 5| engaging a longitudinal groove 52 formed upon the inner face of the perforated shell 23 to non-rotatively hold the tube 53' slidably within the shell 29. A web construction 53 connects the bottom of the tube with a hub 54. This hub 54 is threadedly engaged upon the outside of a hollow shaft 55 which is rotatively mounted on the pipe 25. A fixed collar 55 is The oil mounted on the pipe 25 and engages against the top of the hollow shaft 55.

A fixed collar 51 is mounted on the pipe 25 and engages against the bottom of the hollow shaft 55. The bottom end of the shaft 55 projects from the body 20 and its extended end is provided with a knurled flange 58 by which it may be gripped and turned. A packing gland 53 is mounted upon the bottom wall 22 about the hollow shaft 55 to form an oil tight joint.

The tube 50' shields portions of the strainer 28. When the operating perforations become dirty and clogged it is merely necessary to turn the knurled flange 58 so that the hollow shaft 55 turns causing the hub 54 to travel up or down 'on the shaft and correspondingly moving the tube 55'. Thus perforations of the perforated shell 29 which were closed by the tube 50' are nowexposed to the passage of oil through the strainer.

The operation of the device is as follows:

The oil pump of the engine. pumps the oil through the pipe 36 into the body 20 until the body is completely full. The oil passes through the strainer 28 and up through the pipe 44 into the auxiliary body 31. It fills this body to the top of the tubular flange member 40, then overflows the edges of this flange member passing downwards through the pipe 25 back to the crankcase of the engine. The volatile gasoline or other fuel in the oil will vaporize and fill the top portion of the body 31. The suction from the intake manifold will draw thefuel through the pipe 45. The fuel will thus be mixed with the air in the intake manifold and pass through the carburetor and be consumed in the engine.

In Fig. 18 a hot water jacket 60 is illustrated around the tubular member 20 This hot water jacket is adapted to engage in an annular groove 2| of the top wall 2| and held against the top wall by a threaded nut 60.

The hot water inlet is indicated by a valve 6| and the outlet by a valve 62 at the bottom 5 of the hot water jacket 60. In other respects, this form of the invention is similar to the previous forms and corresponding parts may be recognized by corresponding reference numerals. By means of this arrangement, the oil within the body 20 is kept at a desired predetermined temperature.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

1. In an oiling device for internal combustion engines and the like, a body for holding a quantity of oil from the crankcase of said engine and having a pair of spaced walls mounted on the ends of a tubular member, an oil return pipe for connecting with the oil crankcase of said engine and extending through and connected with said walls for holding the parts of said body together, an oil strainer within said body and mounted on the top one of said walls and disposed about said pipe, an oil inlet pipe to said body for connecting with the oil pump of said engine, and means connecting the interior of said oil strainer with the open end of said oil return pipe for conveying the refined oil back to said crankcase, said oil strainer comprising a cylindrical perforated shell coaxially of said oil return pipe and having its ends closed, and filtering material attached on the outside of said shell, said shell being attached upon the top one of said walls, the bottom end of said shell being provided with an inturned flange, a washer slidably mounted on said pipe, a gasket between said washer and flange, and resilient means urging said washer towards said flange.

2. In an oiling device for internal combustion engines and the like, a body for holding a quan tity of oil from the crankcase of said engine and having a pair of spaced walls mounted on the ends of a tubular member, an oil return pipe for connecting with the oil crankcase of said engine and extending through and connected with said walls for holding the parts of said body together, an oil strainer within said body and mounted on the top one of said Walls and disposed about said pipe, an oil inlet pipe to said body for connecting with the oil pump of said engine, and means connecting the interior of said oil strainer with the open end of said oil return pipe for conveying the refined oil back to said crankcase, said oil strainer comprising a cylindrical perforated shell coaxially of said oil return pipe and having its ends closed, and filtering material attached on the outside of said shell, a tube slidably mounted with said shell to close off one of said perforations, a hub connected with said tube, and a hollow shaft rotatively mounted on said oil return pipe and extending to the exterior of said body and threadedly engaging said hub for moving said tube when the hollow shaft is turned.

3. In an oiling device for internal combustion engines and the like, a body for holding a quantity of oil from the crankcase of said, engine and having a pair of spaced walls mounted on the ends of a tubular member, an oil return pipe for connecting with the oil crankcase of said engine and extending through and connected with said walls for holding the parts of said body together, an oil strainer within said body and mounted on the top one of said walls and disposed about said pipe, an oil inlet pipe to said body for connecting with the oil pump of said engine, and means connecting the interior of said oil strainer with the open end of said oil return pipe for conveying the refined oil back to said crankcase, said oil strainer comprising a cylindrical perforated shell coaxially of said oil return pipe and having its ends closed, and filtering material attached on the outside of said shell, a tube slidably mounted with said shell to close ofi one of said perforations, a hub connected with said tube, and a hollow shaft rotatively mounted on said 011 return pipe and extending to the exterior of said body and threadedly engaging said hub for moving said tube when the hollow shaft is turned, and a packing gland mounted on the bottom wall of said body and about said hollow shaft.

ALBERT EVANS. 

